putc()
Write a character to a stream
Synopsis:
#include <stdio.h> int putc( int c, FILE* fp );
Arguments:
- c
- The character that you want to write.
- fp
- The stream you want to write the character on.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The putc() macro writes the character c, cast as (int)(unsigned char), to the output stream designated by fp.
Returns:
The character written, cast as (int)(unsigned char), or EOF if an error occurs (errno is set).
Examples:
#include <stdio.h> #include <stdlib.h> int main( void ) { FILE* fp; int c; fp = fopen( "file", "r" ); if( fp != NULL ) { while( (c = fgetc( fp )) != EOF ) { putc( c, stdout ); } fclose( fp ); } return EXIT_SUCCESS; }
Classification:
Safety: | |
---|---|
Cancellation point | Yes |
Interrupt handler | No |
Signal handler | No |
Thread | Yes |
Caveats:
putc() is a macro.